flowmaster

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May 15, 2008 | 02:52 PM

y2kStangGT

Thread Starter

3rd Gear Member

Joined: Feb 2007

Posts: 899

From:

flowmaster

hi,
how do i know if i have the american thunder or the 40s series?
and which one is better?
thanks,

May 15, 2008 | 02:56 PM

1sloblckgt

4th Gear Member

Joined: Apr 2008

Posts: 1,296

From: Birmingham, Alabama

RE: flowmaster

Search.

I remember seeing a thread on this like a week ago.

May 15, 2008 | 07:05 PM

bjh061487

3rd Gear Member

Joined: Jan 2007

Posts: 965

From: Philly, PA

RE: flowmaster

Quote:

ORIGINAL: 1sloblckgt

Search.

I remember seeing a thread on this like a week ago.

don't bother telling people to search. they don't do it and when i told someone to do i got yelled at.

40s are better and i would think that it says what type it is on the muffler

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